What the heck happened to the center electrode on the first plug? I installed 4 new plugs on my 1989 US Marine Force 125. Ran it for about 15 minutes troubleshooting some things and setting the timing. Pulled the plugs due to rough idle and a miss, found two were good, two looked like the top...
I had no spark and found the flywheel magnet was loose. Removed flywheel, re-glued magnet in place where it appeared to be originally. Motor would not run right, started and idled OK, but had no power upon acceleration. Checked timing and found it way retarded, like a full 30 degrees from...